A Bubble Column Dehumidifier using Ionic Liquid Desiccant for Low-Humidity Industries: Insights into Transfer Processes Integrating Experiment and CFD Modelling

  • CAO Bowen ,
  • YIN Yonggao ,
  • SAITO Kiyoshi
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  • 1. School of Energy and Environment, Southeast University, Nanjing 210096, China
    2. School of Fundamental Science and Engineering, Waseda University, Tokyo 169-8555, Japan
    3. Department of Applied Mechanics and Aerospace Engineering, Waseda University, Tokyo 169-8555, Japan

Online published: 2024-11-05

Supported by

This work is financially supported by the National Natural Science Foundation of China (Grant number 52076039) and the Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant number KYCX23_0270).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

Abstract

Liquid desiccant deep dehumidification (LDDD) is an excellent energy-saving technology for low-humidity industries. Ionic liquids (ILs) are favored as optimal working fluids for LDDD, owing to their low vapor pressure, non-crystallization, and non-corrosion. The combined application of IL desiccant with the bubble column has been proven to effectively improve deep dehumidification. The present work focuses specifically on the insights into air-liquid transfer processes in bubble column dehumidifier using ionic liquid desiccant. The effect of operating parameters on volumetric transfer coefficient is examined based on the experimental platform. Meanwhile, the bubble swarms meso-scale flow structure is predicted using computational fluid dynamics coupled with a population balance model (CFD-PBM). Besides, the structure-activity relationship between meso-scale flow structure and transfer performance is investigated. The results indicated a notable phenomenon of bubble aggregation/breakage in the moist air-IL desiccant bubbly deep dehumidification (MA-ILD BDD) system, with a specific interfacial area is basically less than 40 m–1. Meanwhile, a decrease in solution temperature, correlated with a significant increase in viscosity, leads to larger turbulent eddies and a slower breakage rate. Notably, a high transfer potential difference enhances heat and mass transfer coefficients at lower solution temperatures, with the mass transfer coefficient at 4°C being approximately three times that at 10°C. As the superficial velocity changes, the specific interfacial area and heat and mass transfer coefficients have a positive synergistic effect on volumetric transfer coefficient. However, this synergistic effect is reversed with variations in solution temperature. This study aims to clarify the air-liquid transfer mechanism in bubble column dehumidifier using IL desiccant.

Cite this article

CAO Bowen , YIN Yonggao , SAITO Kiyoshi . A Bubble Column Dehumidifier using Ionic Liquid Desiccant for Low-Humidity Industries: Insights into Transfer Processes Integrating Experiment and CFD Modelling[J]. Journal of Thermal Science, 2024 , 33(6) : 2348 -2371 . DOI: 10.1007/s11630-024-2041-x

References

[1] Guan B.W., Zhang T., Liu X.H., On-site performance investigation of a desiccant wheel deep-dehumidification system applied in lithium battery manufacturing plant. Energy and Buildings, 2021, 232: 110659. https://doi.org/10.1016/j.enbuild.2020.110659
[2] Zhang Q.L., Li Y.X., Zhang Q.Y., et al., Application of deep dehumidification technology in low-humidity industry: A review. Renewable and Sustainable Energy Reviews, 2024, 193: 114278. https://doi.org/10.1016/j.rser.2024.114278
[3] Fang S., Xu Z.R., Zhou X., et al., Cascade deep air dehumidification with integrated direct-contact cooling and liquid desiccant absorption. Energy Conversion and Management, 2022, 268: 115959. https://doi.org/10.1016/j.enconman.2022.115959
[4] Guan B.W., Liu X.H., Wang X.K., et al., Regeneration energy analysis on desiccant wheel system in curling arena for the Winter Olympics. Building and Environment, 2022, 214: 108960. https://doi.org/10.1016/j.buildenv.2022.108960
[5] Guan B.W., Zhang T., Liu J., et al., Review of internally cooled liquid desiccant air dehumidification: Materials, components, systems, and performances. Building and Environment, 2022, 211: 108747. https://doi.org/10.1016/j.buildenv.2021.108747
[6] Liu Y.X., Liu Z.L., Xia X.X., et al., Desiccant performance evaluation of desiccant-coated heat exchanger-based heat pump by equilibrium model. Journal of Thermal Science, 2023, 32(6): 2361–2373. https://link.springer.com/article/10.1007/s11630-023-1881-0
[7] Zheng X., Lu Y., Wang B., et al., Experimental and theoretical study of an internally cooled liquid desiccant dehumidifier. Journal of Thermal Science, 2023, 32(4): 1684–1696. https://doi.org/10.1007/s11630-023-1725-y
[8] Xu C., Sui J., Dai Y.Z., et al., Performance analysis of a combined absorption refrigeration-liquid desiccant dehumidification THIC system driven by low-grade heat source. Journal of Thermal Science, 2020, 29: 1193–1205. https://doi.org/10.1007/s11630-020-1363-6
[9] Pan L.S., Shi W.X., Li B., et al., Experimental investigation on the performance of [APMIm][NTf2] for capturing CO2 from flue gas of the cement kiln tail. Journal of Thermal Science, 2021, 30(5): 1780–1788. https://doi.org/10.1007/s11630-021-1504-6
[10] Liu X.L., Qu M., Liu X.B., et al., Numerical modeling and performance analysis of a membrane-based air dehumidifier using ionic liquid desiccant. Applied Thermal Engineering, 2020, 175: 115395. https://doi.org/10.1016/j.applthermaleng.2020.115395
[11] Wang T., Liu X.Y., Xue S., et al., Tuning the Molecular Structure and Transport Property of [bmim][Tf2N] Using Electric Field. Journal of Thermal Science, 2022, 31(4): 1076–1083. https://link.springer.com/article/10.1007/s11630-022-1648-z
[12] Zegenhagen M.T., Kühn R., Meyer T., et al., Investigation of a liquid desiccant system for air dehumidification working with an ionic liquid in a two-stage refrigeration system for cold stores. Proceedings of the 24th IIR International Congress of Refrigeration, Yokohama, Japan, 2015. http://dx.doi.org/10.18462/iir.icr.2015.0860
[13] Varela R.J., Giannetti N., Saito K., et al., Experimental performance of a three-fluid desiccant contactor using a novel ionic liquid. Applied Thermal Engineering, 2022, 210: 118343. https://doi.org/10.1016/j.applthermaleng.2022.118343
[14] Cao B.W., Yin Y.G., Zhang F., et al., Experimental study on heat and mass transfer characteristics between a novel ionic liquid and air under low-humidity conditions. International Journal of Heat and Mass Transfer, 2022, 198: 123373. https://doi.org/10.1016/j.ijheatmasstransfer.2022.123373
[15] Cao B.W., Yin Y.G., Zhang F., et al., Liquid desiccant-based deep dehumidifier working with a novel ionic liquid: Prediction model and performance comparison. International Journal of Refrigeration, 2023, 146: 74–87. https://doi.org/10.1016/j.ijrefrig.2022.09.033
[16] Bhati A., Kar A., Bahadur V., Analysis of CO2 hydrate formation from flue gas mixtures in a bubble column reactor. Separation and Purification Technology, 2024, 330: 125261. https://doi.org/10.1016/j.seppur.2023.125261
[17] Bose A., O'Shea R., Lin R.C., et al., Optimisation and performance prediction of photosynthetic biogas upgrading using a bubble column. Chemical Engineering Journal, 2022, 437: 134988. https://doi.org/10.1016/j.cej.2022.134988
[18] Ensafjoee K., Daghigh R., An evacuated tube solar bubble column liquid desiccant regenerator. Applied Thermal Engineering, 2023, 235: 121331. https://doi.org/10.1016/j.applthermaleng.2023.121331
[19] Zhang X., Dong H.F., Huang Y., et al., Experimental study on gas holdup and bubble behavior in carbon capture systems with ionic liquid. Chemical Engineering Journal, 2012, 209: 607–615. https://doi.org/10.1016/j.cej.2012.08.047
[20] Abro M., Yu L., Yu G.R., et al., Experimental investigation of hydrodynamic parameters and bubble characteristics in CO2 absorption column using pure ionic liquid and binary mixtures: Effect of porous sparger and operating conditions. Chemical Engineering Science, 2021, 229: 116041. https://doi.org/10.1016/j.ces.2020.116041
[21] Yang B.B., Shang D.W., Tu W.H., et al., Studies on the physical properties variations of protic ionic liquid during NH3 absorption. Journal of Molecular Liquids, 2019, 296: 111791. https://doi.org/10.1016/j.molliq.2019.111791
[22] Meng F.Z., Ju T.Y., Han S.Y., et al., Study on the effectiveness of ionic liquid-based biphasic amine solvent in removing H2S, NH3 and CO2 from biogas and its influential characteristics. Chemical Engineering Journal, 2023, 474: 145805. https://doi.org/10.1016/j.cej.2023.145805
[23] Cao B.W., Yin Y.G., Xu G.Y., et al., A proposed method of bubble absorption-based deep dehumidification using the ionic liquid for low-humidity industrial environments with experimental performance. Applied Energy, 2023, 348: 121534. https://doi.org/10.1016/j.apenergy.2023.121534
[24] Kantarci N., Borak F., Ulgen K.O., Bubble column reactors. Process Biochemistry, 2005, 40(7): 2263–2283. https://doi.org/10.1016/j.procbio.2004.10.004
[25] Wang X.L., Dong H.F., Zhang X.P., et al., Numerical simulation of single bubble motion in ionic liquids. Chemical Engineering Science, 2010, 65(22): 6036–6047. https://doi.org/10.1016/j.ces.2010.08.030
[26] Ali M.F., Gan J.Q., Chen X.C., et al., Hydrodynamic modeling of ionic liquids and conventional amine solvents in bubble column. Chemical Engineering Research and Design, 2018, 129: 356–375.  https://doi.org/10.1016/j.cherd.2017.11.034
[27] Zhang X., Zhang S.J., Bao D., et al., Absorption degree analysis on biogas separation with ionic liquid systems. Bioresource Technology, 2015, 175: 135–141. https://doi.org/10.1016/j.biortech.2014.10.048
[28] Bao D., Zhang X., Dong H.F., et al., Numerical simulations of bubble behavior and mass transfer in CO2 capture system with ionic liquids. Chemical Engineering Science, 2015, 135: 76–88. https://doi.org/10.1016/j.ces.2015.06.035
[29] Cao B.W., Yin Y.G., Xu G.Y., et al., Experimental and modeling study of bubble absorption-based deep dehumidification using the ionic liquid: Parametric analysis on heat and mass transfer. Energy Conversion and Management, 2023, 290: 117169. https://doi.org/10.1016/j.enconman.2023.117169
[30] Eder E., Hiller S., Brüggemann D., et al., Characteristics of air-liquid heat and mass transfer in a bubble column humidifier. Applied Thermal Engineering, 2022, 209: 118240. https://doi.org/10.1016/j.applthermaleng.2022.118240
[31] He Y.R., Ren A.X., Tang T.Q., et al., Multi-scale numerical simulation of flow, heat and mass transfer behaviors in dense gas-solid flows: A brief review. Journal of Thermal Science, 2022, 31(3): 607–633. https://link.springer.com/article/10.1007/s11630-022-1605-x
[32] Li J.H., Approaching virtual process engineering with exploring mesoscience. Chemical Engineering Journal, 2015, 278: 541–555.
https://doi.org/10.1016/j.cej.2014.10.005
[33] Dong K., Liu X.M., Dong H.F., et al., Multiscale studies on ionic liquids. Chemical Reviews, 2017, 117(10): 6636–6695. https://doi.org/10.1021/acs.chemrev.6b00776
[34] Lun W., Li K.N., Liu B., et al., Experimental analysis of a novel internally-cooled dehumidifier with self-cooled liquid desiccant. Building and Environment, 2018, 141: 117–126. https://doi.org/10.1016/j.buildenv.2018.05.055
[35] Cappelli D., Glennon B., Donnellan P., CFD Simulation of a bubble column evaporator. International Journal of Heat and Mass Transfer, 2022, 188: 122296. https://doi.org/10.1016/j.ijheatmasstransfer.2021.122296
[36] Zhang H.H., Guo K.Y., Wang Y.L., et al., Numerical simulations of the effect of liquid viscosity on gas-liquid mass transfer of a bubble column with a CFD-PBM coupled model. International Journal of Heat and Mass Transfer, 2020, 161: 120229. https://doi.org/10.1016/j.ijheatmasstransfer.2020.120229
[37] Wang T.F., Wang J.F., Jin Y., A CFD-PBM coupled model for gas–liquid flows. AIChE Journal, 2006, 52(1): 125–140. https://doi.org/10.1002/aic.10611
[38] Luo H., Svendsen H.F., Theoretical model for drop and bubble breakup in turbulent dispersions. AIChE Journal, 1996, 42(5) 1225–1233. https://doi.org/10.1002/aic.690420505
[39] Luo H., Coalescence, breakup and liquid circulation in bubble column reactors. PhD thesis from the Norwegian Institute of Technology. Trondheim, Norway, 1993. https://elibrary.ru/item.asp?id=6864276
[40] Li C.X., Cui Y.Z., Shi X.G., et al., CFD simulation of mass transfer in bubble columns: Detailed study of mass transfer models. Chemical Engineering Science, 2022, 264: 118173. https://doi.org/10.1016/j.ces.2022.118173
[41] Verma A.K., Rai S., Studies on surface to bulk ionic mass transfer in bubble column, Chemical Engineering Journal. 2003, 94(1): 67–72. https://doi.org/10.1016/S1385-8947(03)00047-0
[42] Behkish A., Men Z.W., Inga J.R., et al., Mass transfer characteristics in a large-scale slurry bubble column reactor with organic liquid mixtures. Chemical Engineering Science, 2002, 57(16): 3307–3324. https://doi.org/10.1016/S0009-2509(02)00201-4
[43] Pakari A., Ghani S., Performance comparison of different flow arrangements of 4-fuid internally-cooled liquid desiccant dehumidifers. Journal of Thermal Analysis and Calorimetry, 2022, 147(19): 10439–10459. https://doi.org/10.1007/s10973-022-11283-x
[44] Yin Y.G., Chen T.T., Zhang X.S., Heat and mass transfer performance evaluation and advanced liquid desiccant air-conditioning systems. Desiccant Heating, Ventilating, and Air-Conditioning Systems, 2017, pp. 133–165. https://doi.org/10.1007/978-981-10-3047-5_6
[45] Panigrahi B., Wang H.W., Luo W.J., et al., Comparative analysis of the static and dynamic dehumidification performance of metal-organic framework materials. Science and Technology for the Built Environment, 2023, 29(3): 323–338. https://doi.org/10.1080/23744731.2023.2170682
[46] Panigrahi B., Chen Y.S., Luo W.J., et al., Dehumidification effect of polymeric superabsorbent SAP-LiCl composite desiccant-coated heat exchanger with different cyclic switching time. Sustainability, 2020, 12(22): 9673. https://www.mdpi.com/2071-1050/12/22/9673
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